A four-member female dance group (formerly known as JUSKA consisting of five members; however, the last member left due to interest in pursuing a different career) produced by JYK Entertainment. The group name is taken from the first letters of each members' names.

Did you see JUSK perform lastnight? They were orgasmic!

I know eh? But it would of been nice if all five-members performed as JUSKA, my favorite was the one that quit.